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AMERICAN SCIENCE & ENGR INC
AMERICAN SCIENCE & ENGR INC . Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 97 Institutional holders with a total value of $229,006,443.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRICE T ROWE ASSOCIATES INC /MD/ 876,153 36,255,000 15.83%
2 NUANCE INVESTMENTS, LLC 743,861 30,781,000 13.44%
3 VANGUARD GROUP INC 569,956 23,585,000 10.30%
4 BlackRock Fund Advisors 464,030 19,202,000 8.38%
5 RENAISSANCE TECHNOLOGIES LLC 293,700 12,153,000 5.31%
6 INTREPID CAPITAL MANAGEMENT INC 289,639 11,985,000 5.23%
7 DIMENSIONAL FUND ADVISORS LP 242,726 10,044,000 4.39%
8 BlackRock Institutional Trust Company, N.A. 205,940 8,522,000 3.72%
9 ROYCE & ASSOCIATES LP 188,979 7,820,000 3.41%
10 AMERIPRISE FINANCIAL INC 165,373 6,844,000 2.99%
11 STATE STREET CORP 164,616 6,813,000 2.98%
12 Bank of New York Mellon Corp 113,582 4,700,000 2.05%
13 BLACKROCK ADVISORS LLC 107,367 4,443,000 1.94%
14 FULLER & THALER ASSET MANAGEMENT, INC. 86,835 3,593,000 1.57%
15 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 83,468 3,454,000 1.51%
16 EAGLE BOSTON INVESTMENT MANAGEMENT INC 78,998 3,268,000 1.43%
17 NORTHERN TRUST CORP 78,303 3,240,000 1.41%
18 Aristotle Capital Boston, LLC 66,373 2,747,000 1.20%
19 GEODE CAPITAL MANAGEMENT, LLC 53,903 2,230,000 0.97%
20 PRINCIPAL FINANCIAL GROUP INC 47,173 1,952,000 0.85%
21 PARAMETRIC PORTFOLIO ASSOCIATES LLC 46,225 1,913,000 0.84%
22 BlackRock Investment Management, LLC 31,788 1,315,000 0.57%
23 NORGES BANK 29,262 1,211,000 0.53%
24 MENTA CAPITAL LLC 29,158 1,207,000 0.53%
25 South Dakota Investment Council 26,600 1,101,000 0.48%
26 TIAA CREF INVESTMENT MANAGEMENT LLC 25,805 1,068,000 0.47%
27 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 25,080 1,038,000 0.45%
28 Invesco Ltd. 23,810 985,000 0.43%
29 ING GROEP NV 21,000 866,000 0.38%
30 DEUTSCHE BANK AG\ 20,381 842,000 0.37%
31 BlackRock Group LTD 19,145 792,000 0.35%
32 MORGAN STANLEY 17,824 738,000 0.32%
33 PRUDENTIAL FINANCIAL INC 16,752 693,000 0.30%
34 TWO SIGMA INVESTMENTS, LP 16,231 672,000 0.29%
35 I.G. INVESTMENT MANAGEMENT, LTD. 15,493 641,000 0.28%
36 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 13,640 564,000 0.25%
37 TEACHERS ADVISORS, LLC 12,829 531,000 0.23%
38 RHUMBLINE ADVISERS 12,668 524,000 0.23%
39 HighTower Advisors, LLC 11,957 495,000 0.22%
40 ELLINGTON MANAGEMENT GROUP LLC 11,700 484,000 0.21%
41 TWO SIGMA ADVISERS, LP 10,643 440,000 0.19%
42 STIFEL FINANCIAL CORP 8,927 369,000 0.16%
43 Swiss National Bank 8,900 368,000 0.16%
44 Janney Montgomery Scott LLC 8,746 362,000 0.16%
45 UBS Group AG 8,159 338,000 0.15%
46 TD ASSET MANAGEMENT INC 8,000 331,000 0.14%
47 ALLIANCEBERNSTEIN L.P. 8,657 308,000 0.13%
48 NEW YORK STATE COMMON RETIREMENT FUND 7,100 294,000 0.13%
49 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 6,899 285,000 0.12%
50 COMERICA BANK 7,239 269,000 0.12%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.